530621 divided by 18 
We're looking to find how many times 18 goes into 530621.

On to step 1:
The number 18 fits into 5 0 times, leaving a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 18

Step 2:
53 divided by 18 is 2 with a remainder of 17.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 36 from 53 to get 17.
Append the next digit (0) from the dividend to 17 and continue with: 170 / 18

Going ahead to step 3:
18 can be fit into 170 9 times, resulting in a remainder of 8.
The number 9 becomes the next digit in our result. 
Result so far: 29.0
Subtracting 162 from 170 leaves us with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 18

Let's proceed to step 4:
18 goes into 86 4 times with a remainder of 14.
Write down 4 as next digit of the result. 
Result so far: 294.0
If we take 72 away from 86, we end up with 14.
Bring next digit (2) of the dividend behind the 14 and repeat the process: 142 / 18

Step 5:
142 divided by 18 is 7 with a remainder of 16.
Record the quotient 7 as the next digit in the result. 
Result so far: 2947.0
Deduct 126 from 142 and we're left with 16.
Take the next digit (1) from the dividend and append it to 16, then repeat: 161 / 18

On to step 6:
18 can be fit into 161 8 times, resulting in a remainder of 17.
The next digit of our result is 8. 
Result so far: 29478.0
If we take 144 away from 161, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 7:
If we divide 170 by 18, we get 9 and a remainder of 8.
Write down 9 as next digit of the result. 
Result so far: 29478.9
Subtracting 162 from 170 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
The number 18 fits into 80 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 29478.94
Subtract 72 from 80 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
80 divided by 18 is 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 29478.944
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 29478.944, with a leftover of 0.0008.